I'm having a possibly related issue, except my *entire screen* flashes black, then I am getting some giant-sized semi-opaque version of the map overlaid over everything and the scales are all thrown off. I also end up with a second oversize grid on top of everything, and selection cursor is off. I cannot move or manipulate tokens because the cursor is off. Cannot change layers either. Only way to fix it is to log out and re-log. Then it does it again in another minute or so. This started with the recent chrome update. Including a Before and After picture, along with a view of the mis-aligned selection. If I try going to another map and back, it will do it again in a minute, and the scale will get more and more zoomed in, until there is nothing more on the screen. It's like the map field shrinks each time (started with a 50x25 hex map). This error only occurs once unless I switch maps. Once it screws up, it stays in the screwed up state unless I switch maps. Whatever map I switch to will already be screwed up, and will do the black screen thing once, screw up a little more, then stay in that state unless I log out and log back in. Before After Here I zoom out and scroll over, and you can see the second translucent "map" that can't be selected or moved. Notice the "ghostly" large pink bed in the lower right. On this one, you can see where the selection box is being drawn. The cursor doesn't show because I used printscreen, but I have drawn a red circle where it was at the point I was drawing that selection box.